As a rule of thumb, greenhouse gas emissions are roughly equally split between electricity production, transportation, heating, agriculture and industry, about 20% each. Transportation is electrifying rather quickly in Europe, heating at a bit slower pace. So it's a bit better than "10% of the problem" - it's about 20% now, becoming ~40% in 10-15 years, eventually lowering total emissions by ~60% probably some time around 2050

Agriculture and industry are tough nuts to crack. With electricity, transport and heating, it's a problem of scaling out. With agriculture and industry - we don't even have a blueprint yet